Mystery Prize?

This week I received a brand new, hardback copy of Raffaella Barker's novel, 'From A Distance' in the post. The address label on the cardboard packaging is hand written and has 'Bloomsbury Publishing Plc' and their London address printed on it. There is no covering letter and no compliment slip. I was just wondering if it's a prize. I enter so many competitions that I don't have any recollection of any one in particular. Can anyone throw any light on it?